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https://github.com/cmusphinx/sphinxtrain.git
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David Huggins-Daines
52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
# Copyright (c) 2006 Carnegie Mellon University
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#
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# You may copy and modify this freely under the same terms as
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# Sphinx-III
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"""Read/write Sphinx-III LDA/MLLT/covariance files.
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This module reads and writes the linear transformation files used by
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Sphinx-III.
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"""
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__author__ = "David Huggins-Daines <dhdaines@gmail.com>"
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__version__ = "$Revision$"
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from .s3file import S3File, S3File_write
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class S3LDAFile(S3File):
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"Read Sphinx-III format LDA files"
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def __init__(self, file, mode):
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S3File.__init__(self, file, mode)
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self._params = self._load()
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def readgauheader(self):
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if self.fileattr["version"] != "0.1":
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raise Exception("Version mismatch: must be 0.1 but is " +
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self.fileattr["version"])
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def _load(self):
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self.readgauheader()
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self.fh.seek(self.data_start, 0)
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return self.read3d()
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class S3LDAFile_write(S3File_write):
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"Write Sphinx-III format LDA files"
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def __init__(self, filename=None, mode="wb", attr={"version": 0.1}):
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S3File_write.__init__(self, filename, mode, attr)
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def writeall(self, stuff):
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self.write3d(stuff)
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def open(filename, mode="rb"):
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if mode in ("r", "rb"):
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return S3LDAFile(filename)
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elif mode in ("w", "wb"):
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return S3LDAFile_write(filename)
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else:
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raise Exception("mode must be 'r', 'rb', 'w', or 'wb'")
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